Inventor
Daniel R. Chapman
Inventor
Oakland, CA, US
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Nprimary
G01NInvestigating or analysing materials by determining their chemical or physical properties40%
F26BDrying solid materials or objects by removing liquid therefrom30%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges10%
G01FMeasuring volume, volume flow, mass flow or liquid level10%
Y02PClimate change mitigation technologies in the production or processing of goods10%
PatentTitleYear
10,996,203Detection, monitoring, and determination of location of changes in metallic structures using multimode acoustic signals202110,585,069Detection, monitoring, and determination of location of changes in metallic structures using multimode acoustic signals202010,473,625Detection and monitoring of changes in metallic structures using multimode acoustic signals20199,664,212'Evaluating a vessel for suitability for containing fluid'20176,421,931'Method and apparatus for drying iron ore pellets'20026,226,891'Method and apparatus for drying iron ore pellets'20016,148,543'Method and apparatus for drying iron ore pellets'2000Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000–2002Based in Tucson, AZ, US· patent location history
2001Based in Corinth, TX, US· patent location history
2017–2021Patents assigned to CHEVRON USA INC (4)· patent assignee history
2017Patents assigned to BAREFIELD II JAMES E (1)· patent assignee history
2017Patents assigned to BEVERIDGE ANDREW C (1)· patent assignee history
2017Patents assigned to CHAPMAN DANIEL R (1)· patent assignee history
2017–2021Based in Oakland, CA, US· patent location history
2019–2021Patents assigned to TRIAD NAT SECURITY LLC (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CHEVRON USA INC | 4 | 2017–2021 |
| TRIAD NAT SECURITY LLC | 3 | 2019–2021 |
| BAREFIELD II JAMES E | 1 | 2017 |
| BEVERIDGE ANDREW C | 1 | 2017 |
| CHAPMAN DANIEL Rself | 1 | 2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Oakland, California, US | 4 | 2017–2021 |
| Tucson, AZ, US | 2 | 2000–2002 |
| Corinth, Texas, US | 1 | 2001 |